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公开(公告)号：US11473428B2
公开(公告)日：2022-10-18
申请号：US17418948
申请日：2019-12-20
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini
摘要： An axial turbine (100) with two supply levels for the expansion phase of a working fluid in a thermodynamic vapor cycle or in an organic Rankine cycle comprising a shaft (2), a plurality of rotor blade arrays (R1-Rn) and corresponding support disks (21, 22), a plurality of stator blade arrays (S1-Sn), further comprising a first inlet opening (5) and a second inlet opening (7′). The second volute (4) is positioned inside the first volute (3), the working fluid of the second supply level reaching upstream of a stator blade (S2,Sn) that is are immediately upstream of one of the rotor blade arrays that extends radially into both of the first and second supply levels.
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公开(公告)号：US11248500B2
公开(公告)日：2022-02-15
申请号：US16316024
申请日：2017-07-26
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini , Riccardo Vescovo
摘要： An organic Rankine cycle system (100, 110, 120) with direct exchange and in cascade comprising a high temperature organic Rankine cycle (10) which carries out the direct heat exchange with a hot source (H) and a low temperature organic Rankine cycle (10′) in thermal communication with the high temperature cycle (10). The organic Rankine cycle system (100, 110, 120) is configured in a way that the thermal communication between the cycles (10, 10′) takes place through at least one heat exchanger (3) configured to use at least the condensation heat of the high temperature cycle to vaporize and/or preheat the working fluid of the low temperature organic Rankine cycle fluid and through a heat exchanger (4) configured to operate as working fluid sub-cooler for the high temperature organic Rankine cycle (10) and as a working fluid preheater for the low temperature organic Rankine cycle (10′).
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公开(公告)号：US11365652B2
公开(公告)日：2022-06-21
申请号：US16304767
申请日：2017-05-24
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini , Andrea Duvia
摘要： A binary geothermal system comprising: —an organic Rankine cycle having at least one supply pump for feeding an organic working fluid, in liquid phase, of at least one heat exchanger for heating the organic working fluid until its transformation vapor phase and to its eventual overheating, an expansion turbine to expand the organic working fluid vapor, a condenser bringing in a liquid phase the organic working fluid, —a geothermal source comprising a geothermal liquid and a geothermal vapor, the organic working fluid is vaporized directly or indirectly through a flow of geothermal vapor in the heat exchanger and is preheated by a flow of geothermal liquid in a first pre-heater, and the organic working fluid is preheated also in a second pre-heater which exploits the thermal energy contained in a flow rate formed by the gas mixture and by the geothermal vapor fraction which is not condensed.
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公开(公告)号：US20210277805A1
公开(公告)日：2021-09-09
申请号：US16316024
申请日：2017-07-26
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini , Riccardo Vescovo
摘要： An organic Rankine cycle system (100, 110, 120) with direct exchange and in cascade comprising a high temperature organic Rankine cycle (10) which carries out the direct heat exchange with a hot source (H) and a low temperature organic Rankine cycle (10′) in thermal communication with the high temperature cycle (10). The organic Rankine cycle system (100, 110, 120) is configured in a way that the thermal communication between the cycles (10, 10′) takes place through at least one heat exchanger (3) configured to use at least the condensation heat of the high temperature cycle to vaporize and/or preheat the working fluid of the low temperature organic Rankine cycle fluid and through a heat exchanger (4) configured to operate as working fluid sub-cooler for the high temperature organic Rankine cycle (10) and as a working fluid preheater for the low temperature organic Rankine cycle (10′).
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公开(公告)号：US20190024524A1
公开(公告)日：2019-01-24
申请号：US16066619
申请日：2017-01-18
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini
摘要： A method for reducing the leakage of an organic working fluid operating within a turbine (10) of an Organic Rankine Cycle system, the method comprising the injection of a fluid flow rate (Q) into a volume (I) at a static pressure lower than the total pressure (P1) upstream of the turbine and located near of at least one labyrinth seal (L1, L11) of at least one stage of the turbine (10), said fluid flow rate (Q) having an initial exergetic content lower than the initial exergetic content of the organic working fluid located inside the turbine and flowing through said labyrinth seal (L1, L11).
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公开(公告)号：US20210222591A1
公开(公告)日：2021-07-22
申请号：US16304767
申请日：2017-05-24
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini , Andrea Duvia
摘要： A binary geothermal system (100) comprising:—at least one organic Rankine cycle (10) having at least one supply pump (PUMP) for feeding an organic working fluid, in liquid phase, of at least one heat exchanger (EV1) for heating the organic working fluid until its transformation vapor phase and to its eventual overheating, an expansion turbine to expand the organic working fluid vapor, a condenser (CON) bringing in a liquid phase the organic working fluid,—a geothermal source (20) comprising a geothermal liquid and a geothermal vapor, wherein the organic working fluid is vaporized directly or indirectly through a flow (S1) of geothermal vapor in the heat exchanger (EV1) and is preheated by a flow of geothermal liquid (B1) in a first pre-heater (PRE1), and the organic working fluid is preheated also in a second pre-heater (PRE2) which exploits the thermal energy contained in a flow rate (S4) formed by the gas mixture and by the geothermal vapor fraction (S2) which is not condensed, and exit from the heat exchanger (EV1) or by a exchanger (DC).
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公开(公告)号：US20210189912A1
公开(公告)日：2021-06-24
申请号：US16757475
申请日：2018-10-17
申请人： TURBODEN S. p. A.
发明人： Roberto Bini , Mario Gaia , Paolo Belotti
IPC分类号： F01K3/26
摘要： An apparatus for gas compression comprising: a container containing the gas to be compressed; a first heat exchanger exchanging heat between a high temperature thermal source and the gas, to introduce heat into the gas; a second heat exchanger exchanging heat between a low temperature thermal source and the gas, to extract heat from the gas; supply means of the gas at a supply pressure and delivery means of the gas at a delivery pressure greater than the supply pressure); gas permeable means configured to accumulate and transfer heat to the gas, and gas permeable or gas impermeable movable means dividing the container into a first section in thermal communication with the first heat exchanger and in a second section in thermal communication with the second heat exchanger and in fluid communication with said supply means and said gas delivery means.
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公开(公告)号：US10895164B2
公开(公告)日：2021-01-19
申请号：US16066619
申请日：2017-01-18
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini
摘要： A method for reducing the leakage of an organic working fluid operating within a turbine (10) of an Organic Rankine Cycle system, the method comprising the injection of a fluid flow rate (Q) into a volume (I) at a static pressure lower than the total pressure (P1) upstream of the turbine and located near of at least one labyrinth seal (L1, L11) of at least one stage of the turbine (10), said fluid flow rate (Q) having an initial exergetic content lower than the initial exergetic content of the organic working fluid located inside the turbine and flowing through said labyrinth seal (L1, L11).
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公开(公告)号：US10794202B2
公开(公告)日：2020-10-06
申请号：US16097607
申请日：2017-05-08
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini , Davide Colombo
摘要： A mixed flow turbine (1) for the expansion phase of steam thermodynamic cycles of an organic Rankine cycle provided with a first section (A) in which a first expansion of a main flow of working fluid takes place, in a substantially radial direction having at least one stator stage (S1, S2, . . . Sn) and at least one rotor stage (R1, R2, . . . Rn) of a second section (B) in which a second expansion of the main flow of the working fluid takes place in a substantially axial direction having at least one stator stage and at least one rotor stage and, between the first and the second section, with at least one angular stator stage (S4) comprising an array of angular blades which deflect the main flow of working fluid from the initial radial direction to a substantially axial direction. The turbine (1) is provided with means for injection (60) and/or means for extraction (70) of a second flow of working fluid, placed in proximity of the stator stage (S4).
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公开(公告)号：US20190136704A1
公开(公告)日：2019-05-09
申请号：US16097607
申请日：2017-05-08
申请人： TURBODEN S. p. A.
发明人： Mario Gaia , Roberto Bini , Davide Colombo
CPC分类号： F01D9/06 , F01D5/041 , F01D9/045 , F02C9/18 , F05D2220/32 , F05D2240/128
摘要： A mixed flow turbine (1) for the expansion phase of steam thermodynamic cycles of an organic Rankine cycle provided with a first section (A) in which a first expansion of a main flow of working fluid takes place, in a substantially radial direction having at least one stator stage (S1, S2, . . . Sn) and at least one rotor stage (R1, R2, . . . Rn) of a second section (B) in which a second expansion of the main flow of the working fluid takes place in a substantially axial direction having at least one stator stage and at least one rotor stage and, between the first and the second section, with at least one angular stator stage (S4) comprising an array of angular blades which deflect the main flow of working fluid from the initial radial direction to a substantially axial direction. The turbine (1) is provided with means for injection (60) and/or means for extraction (70) of a second flow of working fluid, placed in proximity of the stator stage (S4).
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